Electrically-heated pad and the like.



J. G. SGHUIRMANN. ELEGTRIGALLY HBATBD PAD AND THE LIKE.

, APPLICATION FILED MAY 20, 1912.

' Patented Sept. 30.! 1913.

UNITED STATES PATENT OFFICE.'

JOHN G. SCHUIRMANN, OF KENT, WASHINGTON, ASSIGNOR OF ONE-HALF TO CHARLES L. SANTEE, OF RENTON, WASHINGTON.

ELECTRICALLYi-HEATED PAD AND THE LIKE.

Speeieation of Letters Patent. l Patented SeptSO, 1913.

Application filed Hay`20, 1912. Serial No. 698,611.

lowing is a specification.

My invention has particular reference to electricallyheated pads, and a primary object thereof is to provide a device of this character wherein the heating element is so constructed and supported as to permit of the pad being folded and thereby reduced to compact form when not in use, wit-hout injury to the heating element.

With the above and other objects in view to be referred to as-my description progresses, my invention resides in the features of construction, arrangements and combinations of parts hereinafter described and succinctly defined in my annexed claim.

'Referring to the accompanying drawing wherein like numerals of reference indicate `like parts throughout: Figure 1 is a plan of a pad constructed in accordance with my invention, portions of the covering and facing being broken away. Fig. 2 is a section taken on line 2-2 of Fig. 1, and Fig. 3 is a detail illustrating in section the joint between one of the heating element sections and the relatively flexible or pliable connccting wires.

In carrying out my invention I provide the resistance wire or element, 1n sections, as 1, 2, 3 and 4, said element being connected as at 1,'2, with the leading wires'5 `those on the opposite side thereof.

the heating elemcit, as isclearly lshown in Fig. 2. One of the flexible joining wires 7 s lies directly opposite wires 5 and 6, thereby permittin of the heating element sections on one si e being swung or positioned crilvler e other joining wires 7 are directly opposite one another. A

Reference numeral 8 indicates a covering 55 vmember for the resistance element, the same comprising flexible side members to one of which the resistance element sections 1, 2, 3 and 4 are secured, as by stitches 9.

Reference numerals 10 indicate facing 6'0 members of any suitable flexible material which are secured to thev covering member 8 and to an edge strip-11, as by sewing.

Resistance. element sections 1, 2, 3 and 4 are preferably formed of wire, commonly known as nicrom, and bein secured to but one of the side members o covering 8 and connected to one another, by the flexible joining wires 7, which are conveniently of copper, will be uninjured by folding and unfolding of the pad as will be apparent.

Having thus described my invention what I claim yas new, and desire to secure by Letters Patent of the United States of America, is

In a device of the character described, a covering member comprising independent side sections, a heating elementvin said covering member comprising resistance wire sections, fiexible joints connecting the sections in series, and enlarged insulating members coverin the connection of said flexible joints to t eresist-ance wire sections and spacing the side sections of said covering member from thehe'ating element.

Signed at Seattle, Washington, this 2nd day of May, 1912. l

JOHN G. SCHUIRMANN.

Witnesses:

STEPHEN A. BRooKs, ARLrrA ADAMS. 

